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Add support for devfs. In other words, for -CURRENT, make work at all

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again for normal device nodes.
This commit is contained in:
Brian Feldman 2001-12-17 13:42:46 +00:00
parent 125c50cdeb
commit fca066fe02
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=88051
1 changed files with 41 additions and 0 deletions
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41
usr.bin/fstat/fstat.c
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@ -66,6 +66,7 @@ static const char rcsid[] =
#include <sys/file.h>
#include <ufs/ufs/quota.h>
#include <ufs/ufs/inode.h>
#include <fs/devfs/devfs.h>
#include <sys/mount.h>
#undef _KERNEL
#include <nfs/nfsproto.h>
@ -142,6 +143,7 @@ void dommap __P((struct kinfo_proc *kp));
void vtrans __P((struct vnode *vp, int i, int flag));
int ufs_filestat __P((struct vnode *vp, struct filestat *fsp));
int nfs_filestat __P((struct vnode *vp, struct filestat *fsp));
int devfs_filestat __P((struct vnode *vp, struct filestat *fsp));
char *getmnton __P((struct mount *m));
void pipetrans __P((struct pipe *pi, int i, int flag));
void socktrans __P((struct socket *sock, int i));
@ -466,6 +468,12 @@ vtrans(vp, i, flag)
if (!ufs_filestat(&vn, &fst))
badtype = "error";
break;
case VT_DEVFS:
if (!devfs_filestat(&vn, &fst))
badtype = "error";
break;
case VT_NFS:
if (!nfs_filestat(&vn, &fst))
badtype = "error";
@ -570,6 +578,39 @@ ufs_filestat(vp, fsp)
return 1;
}
int
devfs_filestat(vp, fsp)
struct vnode *vp;
struct filestat *fsp;
{
struct devfs_dirent devfs_dirent;
struct mount mount;
struct vnode vnode;
if (!KVM_READ(vp->v_data, &devfs_dirent, sizeof (devfs_dirent))) {
dprintf(stderr, "can't read devfs_dirent at %p for pid %d\n",
(void *)vp->v_data, Pid);
return 0;
}
if (!KVM_READ(vp->v_mount, &mount, sizeof (mount))) {
dprintf(stderr, "can't read mount at %p for pid %d\n",
(void *)vp->v_mount, Pid);
return 0;
}
if (!KVM_READ(devfs_dirent.de_vnode, &vnode, sizeof (vnode))) {
dprintf(stderr, "can't read vnode at %p for pid %d\n",
(void *)devfs_dirent.de_vnode, Pid);
return 0;
}
fsp->fsid = (long)mount.mnt_stat.f_fsid.val[0];
fsp->fileid = devfs_dirent.de_inode;
fsp->mode = (devfs_dirent.de_mode & ~S_IFMT) | S_IFCHR;
fsp->size = 0;
fsp->rdev = dev2udev((dev_t)vnode.v_rdev);
return 1;
}
int
nfs_filestat(vp, fsp)
struct vnode *vp;